Global Patent Index - EP 0814193 A2

EP 0814193 A2 19971229 - Stabilizing agent for peroxide-bleaching procedure and methods of bleaching a fiber material by using same

Title (en)

Stabilizing agent for peroxide-bleaching procedure and methods of bleaching a fiber material by using same

Title (de)

Stabilisierungsmittel für Peroxidbleichen und Verfahren zum Bleichen eines faserigen Materials unter Verwendung desselben

Title (fr)

Agent stabilisateur pour le blanchiment au peroxyde et procédés pour le blanchiment d'un matériau fibreux l'utilisant

Publication

EP 0814193 A2 19971229 (EN)

Application

EP 97110041 A 19970619

Priority

JP 16175796 A 19960621

Abstract (en)

A stabilizing agent for peroxide-bleaching procedure includes (A) a component including a homopolymer or copolymer of alpha -hydroxyacrylic acid or water soluble salt or polylactone of the homo- or co-polymer, (B) a component including a homopolymer or copolymer of acrylic acid, methacrylic acid and/or maleic acid and water-soluble salt of the homo- or co-polymer, (C) a component including DTPA, TTHA or water-soluble salt thereof and optionally (D) a component including a water-soluble inorganic Mg salt and is used to pretreat a fiber material with a pretreating liquid containing the stabilizing agent before bleaching with peroxide, or to bleach the fiber material by a bleaching liquid containing a peroxide bleaching agent and the stabilizing agent.

IPC 1-7

D21C 9/10; D21C 9/16; D06L 3/02

IPC 8 full level

C01F 5/40 (2006.01); C08K 5/205 (2006.01); C08L 33/02 (2006.01); C08L 67/00 (2006.01); C08L 67/04 (2006.01); C11D 3/39 (2006.01); C11D 3/395 (2006.01); C11D 7/54 (2006.01); D06L 3/02 (2006.01); D06L 4/30 (2017.01); D21C 9/10 (2006.01); D21C 9/16 (2006.01)

CPC (source: EP US)

C11D 3/394 (2013.01 - EP US); D06L 4/12 (2016.12 - EP US); D21C 9/1036 (2013.01 - EP US); D21C 9/163 (2013.01 - EP US)

Designated contracting state (EPC)

DE FI FR SE

DOCDB simple family (publication)

EP 0814193 A2 19971229; EP 0814193 A3 20000112; EP 0814193 B1 20031015; CA 2207884 A1 19971221; DE 69725513 D1 20031120; JP H108092 A 19980113; US 6120556 A 20000919

DOCDB simple family (application)

EP 97110041 A 19970619; CA 2207884 A 19970617; DE 69725513 T 19970619; JP 16175796 A 19960621; US 87701797 A 19970616